adc.c File Reference

Simple ADC support for PX4IO on STM32. More...

#include <px4_platform_common/px4_config.h>
#include <stdint.h>
#include <nuttx/arch.h>
#include <arch/stm32/chip.h>
#include <stm32.h>
#include <drivers/drv_hrt.h>
#include <perf/perf_counter.h>
#include "px4io.h"

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Macros
#define	DEBUG
#define	REG(_reg)   (*(volatile uint32_t *)(STM32_ADC1_BASE + _reg))
#define	rSR   REG(STM32_ADC_SR_OFFSET)
#define	rCR1   REG(STM32_ADC_CR1_OFFSET)
#define	rCR2   REG(STM32_ADC_CR2_OFFSET)
#define	rSMPR1   REG(STM32_ADC_SMPR1_OFFSET)
#define	rSMPR2   REG(STM32_ADC_SMPR2_OFFSET)
#define	rJOFR1   REG(STM32_ADC_JOFR1_OFFSET)
#define	rJOFR2   REG(STM32_ADC_JOFR2_OFFSET)
#define	rJOFR3   REG(STM32_ADC_JOFR3_OFFSET)
#define	rJOFR4   REG(STM32_ADC_JOFR4_OFFSET)
#define	rHTR   REG(STM32_ADC_HTR_OFFSET)
#define	rLTR   REG(STM32_ADC_LTR_OFFSET)
#define	rSQR1   REG(STM32_ADC_SQR1_OFFSET)
#define	rSQR2   REG(STM32_ADC_SQR2_OFFSET)
#define	rSQR3   REG(STM32_ADC_SQR3_OFFSET)
#define	rJSQR   REG(STM32_ADC_JSQR_OFFSET)
#define	rJDR1   REG(STM32_ADC_JDR1_OFFSET)
#define	rJDR2   REG(STM32_ADC_JDR2_OFFSET)
#define	rJDR3   REG(STM32_ADC_JDR3_OFFSET)
#define	rJDR4   REG(STM32_ADC_JDR4_OFFSET)
#define	rDR   REG(STM32_ADC_DR_OFFSET)

Functions
int	adc_init (void)
	Sensors/misc inputs. More...
uint16_t	adc_measure (unsigned channel)

Variables
perf_counter_t	adc_perf

Detailed Description

Simple ADC support for PX4IO on STM32.

Definition in file adc.c.

Macro Definition Documentation

DEBUG

#define DEBUG

Definition at line 49 of file adc.c.

rCR1

#define rCR1   REG(STM32_ADC_CR1_OFFSET)

Definition at line 59 of file adc.c.

rCR2

#define rCR2   REG(STM32_ADC_CR2_OFFSET)

Definition at line 60 of file adc.c.

Referenced by adc_init(), and adc_measure().

rDR

#define rDR   REG(STM32_ADC_DR_OFFSET)

Definition at line 77 of file adc.c.

Referenced by adc_measure().

REG

#define REG

(

_reg

)

(*(volatile uint32_t *)(STM32_ADC1_BASE + _reg))

Definition at line 56 of file adc.c.

rHTR

#define rHTR   REG(STM32_ADC_HTR_OFFSET)

Definition at line 67 of file adc.c.

rJDR1

#define rJDR1   REG(STM32_ADC_JDR1_OFFSET)

Definition at line 73 of file adc.c.

rJDR2

#define rJDR2   REG(STM32_ADC_JDR2_OFFSET)

Definition at line 74 of file adc.c.

rJDR3

#define rJDR3   REG(STM32_ADC_JDR3_OFFSET)

Definition at line 75 of file adc.c.

rJDR4

#define rJDR4   REG(STM32_ADC_JDR4_OFFSET)

Definition at line 76 of file adc.c.

rJOFR1

#define rJOFR1   REG(STM32_ADC_JOFR1_OFFSET)

Definition at line 63 of file adc.c.

rJOFR2

#define rJOFR2   REG(STM32_ADC_JOFR2_OFFSET)

Definition at line 64 of file adc.c.

rJOFR3

#define rJOFR3   REG(STM32_ADC_JOFR3_OFFSET)

Definition at line 65 of file adc.c.

rJOFR4

#define rJOFR4   REG(STM32_ADC_JOFR4_OFFSET)

Definition at line 66 of file adc.c.

rJSQR

#define rJSQR   REG(STM32_ADC_JSQR_OFFSET)

Definition at line 72 of file adc.c.

rLTR

#define rLTR   REG(STM32_ADC_LTR_OFFSET)

Definition at line 68 of file adc.c.

rSMPR1

#define rSMPR1   REG(STM32_ADC_SMPR1_OFFSET)

Definition at line 61 of file adc.c.

Referenced by adc_init().

rSMPR2

#define rSMPR2   REG(STM32_ADC_SMPR2_OFFSET)

Definition at line 62 of file adc.c.

Referenced by adc_init().

rSQR1

#define rSQR1   REG(STM32_ADC_SQR1_OFFSET)

Definition at line 69 of file adc.c.

Referenced by adc_init().

rSQR2

#define rSQR2   REG(STM32_ADC_SQR2_OFFSET)

Definition at line 70 of file adc.c.

Referenced by adc_init().

rSQR3

#define rSQR3   REG(STM32_ADC_SQR3_OFFSET)

Definition at line 71 of file adc.c.

Referenced by adc_init(), and adc_measure().

rSR

#define rSR   REG(STM32_ADC_SR_OFFSET)

Definition at line 58 of file adc.c.

Referenced by adc_measure().

Function Documentation

adc_init()

int adc_init

(

void

)

Sensors/misc inputs.

Definition at line 82 of file adc.c.

References PC_ELAPSED, perf_alloc, rCR2, rSMPR1, rSMPR2, rSQR1, rSQR2, and rSQR3.

Referenced by user_start().

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adc_measure()

uint16_t adc_measure

(

unsigned

channel

)

Definition at line 137 of file adc.c.

References hrt_absolute_time(), hrt_abstime, hrt_elapsed_time(), perf_begin(), perf_end(), rCR2, rDR, rSQR3, and rSR.

Referenced by controls_tick(), and registers_get().

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Variable Documentation

adc_perf

perf_counter_t adc_perf

Definition at line 79 of file adc.c.